Liquid measuring apparatus



y 1937. A. LANsER V Re. 20,369

LIQUID MEASURING APPARATUS Original Filed Nov. 16, 19Q8 v figeiizbr: dlfr-edLarzdel 7720044 fit Reissued May 18, 1937 LIQUID MEASURING APPARATUS Alfred Lanser, Corseaux-"Vevey, Switzerland, as-

signor, by mesne assignments, to S. F. Bowser & Company, Inc., Fort Wayne, Ind.

Original No. 1,783,510, dated December 2, 1930,

Serial No. 319,759, November 16, 1923.

plication for reissue January 6. 1933, Serial No. 650,453. In France November 2, 1928 13 Claims.

I The present invention relates to liquid measuring apparatus, and more particularly, to those of the type designed for use with gasoline, oil, or the like.

One oi. the objects of the invention is to provide means for separating the gases contained in the liquid to be measured and additional means Referring to the drawing, there is shown a pump l whose intake conduit 2 is connected to a supply tank 3,-a pump discharge conduit 4 connected tangentially to the upper part of a gas separator 5 which latter delivers through a central discharge conduit 5 to a 4-way valve 6 controlling the feed to and the discharge from apair of calibrated measuring reservoirs I, 8

positioned above the level of 5,-a float chamber I 9 communicatingthrough a passage 9 with the liquid "in separator 5,a gas discharge conduit ll'located at the top of chamber 5 and communicating with a recovery conduit I2 through a restricted passage-8 preferably controlled by floa't l5 and needle valve '|4,-a vent conduit l3 in circuit with recovery conduit I2,a recovery chamber It interposed between conduits l2 and I3 and provided with a float i8,--and a return conduit I'I communicating at 19 with chamber 16 and at its other extremity with conduit 2, orifice l9 being controlled by a needle valve I6 connected to float l8. The vent conduit I3 arranged in substantially vertical relation as shown constitutes a stand pipe in which the liquids are deposited from gases passing therethrough from the gas discharge port 9 The apparatus functions as follows: Liquid to be measured is pumped by pump '1 via conduits 2 and I into separator where the vortexial movement of the liquid passing from 4 to 6 separates the contained gases which discharge via conduit ll past valve ll into conduits l2, I3; when the apparatus is not being operated, the liquid in conduit 6 produces a backpressure in separator 5 tending to force the liquid contained in the latter past valve H, a valve 20 interposed between elements 2 and 3 preventing a siphoning eflect into the supply reservoir; since valve 14 is rarely entirely leak-proof, the liquid forced into conduit I! has hitherto been lost, but is now recovered via recovery turn and i1.

What I claim is:

1. An apparatus of the class described comprising a supply reservoir, a gas and liquid separator having a gas discharge port normally open to the atmosphere and a liquid discharge port, means for supplying liquid from said reservoir to said separator, a valve adapted to close said gas discharge port, means for recovering liquid passing said gas discharge port valve comprising a recovery chamber communicating with said gas discharge port, normally open to the atmosphere at its upper end and having a valve controlled liquid outlet at its lower end.

2. An apparatus of the class described comprising a supply reservoir, a gas and liquid separator having a-gas dis-charge port and a liquid discharge port, means for passing liquid from chamber l6 and conduit resaid supply reservoir to said gas and liquid sep- L a conduit in communication with the atmosphere,

a liquid discharge opening at the bottom of said recovery chamber, a float controlled valve governing said liquid discharge opening, and a conduit connecting said liquid discharge opening with said supply reservoir.

3. An apparatus of the class described comprising a supply reservoir, a gas and liquid separator having a gas discharge port and a liquid discharge port, means including a pump for passingthe liquid from the supply reservoir to said gas and liquid separator, a stand pipe for separating the liquid from the gas passing through said gas discharge port, said pipe communicating with the latter and with the atmosphere, 9, liquid recovery chamber communicating with said pipe,

and float valve controlled means for returning the liquid from the chamber to the suction side of the pump.

v 4. An apparatus of the class described comprising a supply reservoir, a gas and liquid separator having a gas discharge port and a liquid discharge port, means including a pump for passing the liquid from the supply reservoir to said gas and liquid separator, means forming a liquid recovery chamber, means for discharging air and gas from said separator to the atmosphere, means for passing liquid from said separator to said liquid recovery chamber, and float controlled means for discharging the liquid in said liquid recovery chamber to the suction side oi the pump.

5. In combination with a pump for liquid having a suction chamber and an outlet chamber, an

air separating means having a receiving chamber and a float chamber provided with a restricted air passageway therebetween, said receiving chamber having communication with the outlet chamber of said pump and provided with a liquid discharge outlet, a connection for liquid between said float chamber and the sucting chamber of said pump, said float chamber having an air vent, and a float actuated valve including a float in said float chamber for controlling said connection.

6. In combination with a pump for liquid having a suction chamber and an outlet chamber, an air separating means having a receiving chamber and a float chamber provided with an air passageway therebetween, said receiving chamber having communication withthe outlet chamber of said pump and provided with a liquid discharge outlet, a connection for liquid between said float chamber and the suction chamber of said pump, said float chamber having an air vent,

and a float actuated valve including a float in said float chamber for controlling said connection.

7. An apparatus of the class described comprising a supply reservoir, a gas and liquid separator having a gas discharge port and a liquid discharge port, means including a. pump for passing the liquid from the supply reservoir to said gas and liquid separator, means for separating entrained liquid from the gas passing through said gas discharge port, said latter means communicating with the gas discharge port and with the atmosphere, and a liquid recovery chamber communicating with said last named means, said liquid recovery chamber having a return connection to the suction side of the pump and-means for preventing air passing through said return connection to the suction side of the-pump.

8. An apparatus of the class described comprising a supply reservoir, a gas and liquid separator connected to said reservoir and having a gas discharge port and aliquid discharge port, a pump for passing liquid from the supply reservoir to said separator, a float controlled valve for the 89s discharge port 01' the separator, means for separating entrained liquid from the gas passing through said port, means for discharging the gas to the atmosphere, and a liquid recovery chamber communicating with the gas discharge port and having a return connection to the suction side oi the pump, and means for preventing air from passing through the return connection to the suction side of the pump.

9. An apparatus of the class described, comprising a supply reservoir, a gas and liquid separator having a gas discharge port and a liquid discharge port, meanscomprising a pump having its suction side connected with said supply reservoir and its pressure side connected with said separator for delivering liquid containing gas. to

isaid separator, valve means between said pump and said reservoir permitting flow in one direction only from said reservoir through the pump to said separator, means comprising a recovery chamber connected with said gas discharge port and adapted to receive gas discharged from the separator through said port together with any liquid discharged with said gas. said liquid recovery chamber having in its upper portions an opening in communication with atmosphere, a conduit connecting the lower portions of said chamber with the suction side of saidpump, and a float controlled valve having float means within said chamber and operatively associated with said conduit for controlling fluid flow therethrough.

10. In combination with a. pump -1'or liquid having a. suction conduit and an outlet conduit, air separating means comprising a receiving chamber, a float chamber and a restricted air passageway between said chambers, said receiving chamber being connected to the outlet conduit of said pump and being provided with a liquid discharge outlet, a passage for conducting liquid between said float chamber and the suction conduit oi the pump, said float chamber having an unrestricted air vent and a float actuated valve in said float chamber for controlling said passage.

11. In combination with a liquid .pump' having a supply line and a discharge line, a gas separator comprising a receiving chamber connected to the discharge line and provided with a liquid discharge opening and a restricted gas outlet leading from the upper portion of said chamber, a liquid recovering chamber communicating with said restricted gas outlet, a vent for said recovering chamber, a conduit connected to conduct liquid from said liquid recovering chamber'to said supply line, and means for preventing gases from entering said conduit.

12. In combination with a liquid pump having a supply line and a discharge line, a gas separator comprising a receiving chamber connected to the discharge line and provided with a liquid discharge opening and a restricted gas outlet leading from the upper portion of said chamber, a recovering chamber adapted to recover liquid entrained in the gas passing through said gas outlet, a constantly open vent for said recovering chamber, a conduit connected to conduct liquid from said liquid recovering chamber to said supply line, and means for preventing gases from entering said conduit.

13. An apparatus of the class described comprising a supply reservoir having a gas and liquid separator connected thereto and a pump for passing liquid from the reservoir to theseparator, a liquid outlet for said separator, said separator comprising a plurality oi. chambers one oi which is provided with a restricted gas discharge port, a channel connecting the upper portions of said chambers, means connected to receive and separate the gas and entrained liquid discharged from said port, a vent for said receiving means, a conduit connected to said receiving means for returning liquid from said receiving means to the suction side or the pump and means to prevent e of gas through; said conduit to said pumps Am LANSIR. 

